张涵,刘铁军,刘波,谢代梁,徐雅,黄震威.遗传优化PID整定算法在阀门定位器中的应用[J].电子测量与仪器学报,2021,35(11):215-222
遗传优化PID整定算法在阀门定位器中的应用
Application of PID tuning algorithm based on geneticoptimization in valve positioner
  
DOI:
中文关键词:  电气阀门定位器  PID控制  继电反馈法  改进遗传算法  超调量
英文关键词:electric pneumatic valve positioner  PID control  relay feedback method  improved genetic algorithm  overshot
基金项目:
作者单位
张涵 中国计量大学杭州310018 
刘铁军 中国计量大学杭州310018 
刘波 浙江嘉松科技有限公司温州325105 
谢代梁 中国计量大学杭州310018 
徐雅 中国计量大学杭州310018 
黄震威 中国计量大学杭州310018 
AuthorInstitution
Zhang Han China Jiliang University, Hangzhou 310018, China 
Liu Tiejun China Jiliang University, Hangzhou 310018, China 
Liu Bo Zhejiang Jiasong Technology Co., Ltd, Wenzhou 325105, China 
Xie Dailiang China Jiliang University, Hangzhou 310018, China 
Xu Ya China Jiliang University, Hangzhou 310018, China 
Huang Zhenwei China Jiliang University, Hangzhou 310018, China 
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中文摘要:
      电气阀门定位器调节阀门开度的PID控制过程容易出现较大的超调,通过自然泄气或增加反作用回调阀位,会对系统的鲁棒性和控制效率产生较大影响。提出一种遗传优化的PID整定算法,基于继电反馈法获得系统PID参数的大致范围,并利用改进遗传算法进行PID参数寻优,使系统接近无超调控制,提高控制精度,缩短调节时间。系统获得PID参数用于控制气动调节阀,超调量可控制在06%,调节时间相比于传统PID算法缩短66%。仿真和实验结果表明,该整定算法能够实现稳、准、快的控制方式,为优化电气阀门定位器的控制策略提供了一种新的思路。
英文摘要:
      When electric pneumatic valve positioner regulates the valve opening, large overshoot will be generated in the PID process. Natural deflating or adding anti reaction will be adopted to adjust the valve position, but the system robustness and control efficiency will be greatly affected. A genetic optimization PID tuning algorithm is proposed in this paper, based on the relay feedback method to estimate the system PID parameters roughly, then the improved genetic algorithm is used to optimize the PID parameters. The proposed methods enable the system to realize control without overshoot, improve the control accuracy, and shorten the adjustment time. In the process of controlling the pneumatic regulating valve with PID parameters obtained by this system, the overshoot can be controlled under 06%, and the adjusting time can be shortened by 66% compared with the traditional PID algorithm. Simulation and experiment results show that the proposed algorithm can realize stable, accurate and fast control mode, and this idea is proposed to optimize the control strategy of electric pneumatic valve positioner.
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